RESOLUTION MEPC.251(66) Adopted on 4 April 2014
AMENDMENTS TO THE ANNEX OF THE PROTOCOL OF 1997 TO AMEND
THE INTERNATIONAL CONVENTION FOR THE PREVENTION OF
POLLUTION FROM SHIPS, 1973, AS MODIFIED BY THE
PROTOCOL OF 1978 RELATING THERETO
RESOLUTION MEPC.251(66) Adopted on 4 April 2014
AMENDMENTS TO THE ANNEX OF THE PROTOCOL OF 1997 TO AMEND
THE INTERNATIONAL CONVENTION FOR THE PREVENTION OF
POLLUTION FROM SHIPS, 1973, AS MODIFIED BY THE
MEPC 66/21
PROTOCOL OF 1978 RELATING THERETO
Annex 12, page 1
ANNEX 12
RESOLUTION MEPC.251(66)
Adopted on 4 April 2014
AMENDMENTS TO THE ANNEX OF THE PROTOCOL OF 1997 TO AMEND
THE INTERNATIONAL CONVENTION FOR THE PREVENTION OF
POLLUTION FROM SHIPS, 1973, AS MODIFIED BY THE
PROTOCOL OF 1978 RELATING THERETO
Amendments to MARPOL Annex VI and the NOX Technical Code 2008
(Amendments to regulations 2, 13, 19, 20 and 21 and the Supplement to
the IAPP Certificate under MARPOL Annex VI and certification of
dual-fuel engines under the NOX Technical Code 2008)
THE MARINE ENVIRONMENT PROTECTION COMMITTEE,
RECALLING article 38(a) of the Convention on the International Maritime Organization
concerning the functions of the Marine Environment Protection Committee conferred upon it
by international conventions for the prevention and control of marine pollution from ships,
NOTING article 16 of the International Convention for the Prevention of Pollution from
Ships, 1973 (hereinafter referred to as the "1973 Convention"), article VI of the Protocol of
1978 relating to the International Convention for the Prevention of Pollution from
Ships, 1973 (hereinafter referred to as the "1978 Protocol") and article 4 of the Protocol of
1997 to amend the International Convention for the Prevention of Pollution from
Ships, 1973, as modified by the Protocol of 1978 relating thereto (hereinafter referred to as
the "1997 Protocol"), which together specify the amendment procedure of the 1997 Protocol
and confer upon the appropriate body of the Organization the function of considering and
adopting amendments to the 1973 Convention, as modified by the 1978 and 1997 Protocols,
NOTING that, by the 1997 Protocol, Annex VI entitled Regulations for the Prevention of Air
Pollution from Ships was added to the 1973 Convention (hereinafter referred to as "Annex VI"),
NOTING FURTHER regulation 13 of MARPOL Annex VI which makes the Technical Code
on Control of Emission of Nitrogen Oxides from Marine Diesel Engines (NO X Technical
Code 2008) mandatory under that Annex,
NOTING ALSO that both the revised Annex VI, adopted by resolution MEPC.176(58) and
the NOX Technical Code 2008, adopted by resolution MEPC.177(58) entered into force
on 1 July 2010,
HAVING CONSIDERED draft amendments to the revised Annex VI and the NOX Technical
Code 2008,
1.
ADOPTS, in accordance with article 16(2)(d) of the 1973 Convention, the
amendments to Annex VI and the NOX Technical Code 2008, the text of which is set out in
the annex to the present resolution;
I:\MEPC\66\21.doc
RESOLUTION MEPC.251(66) Adopted on 4 April 2014
AMENDMENTS TO THE ANNEX OF THE PROTOCOL OF 1997 TO AMEND
THE INTERNATIONAL CONVENTION FOR THE PREVENTION OF
POLLUTION FROM SHIPS, 1973, AS MODIFIED BY THE
MEPC 66/21
PROTOCOL OF 1978 RELATING THERETO
Annex 12, page 2
2.
DETERMINES, in accordance with article 16(2)(f)(iii) of the 1973 Convention,
that the amendments shall be deemed to have been accepted on 1 March 2015, unless prior
to that date, not less than one third of the Parties or Parties the combined merchant fleets of
which constitute not less than 50% of the gross tonnage of the world's merchant fleet, have
communicated to the Organization their objection to the amendments;
3.
INVITES the Parties to note that, in accordance with article 16(2)(g)(ii) of
the 1973 Convention, the said amendments shall enter into force on 1 September 2015 upon
their acceptance in accordance with paragraph 2 above;
4.
REQUESTS the Secretary-General, in conformity with article 16(2)(e) of
the 1973 Convention, to transmit to all Parties to the 1973 Convention, as modified by
the 1978 and 1997 Protocols, certified copies of the present resolution and the text of the
amendments contained in the annex;
5.
REQUESTS FURTHER the Secretary-General to transmit to the Members of the
Organization which are not Parties to the 1973 Convention, as modified by the 1978
and 1997 Protocols, copies of the present resolution and its annex.
I:\MEPC\66\21.doc
RESOLUTION MEPC.251(66) Adopted on 4 April 2014
AMENDMENTS TO THE ANNEX OF THE PROTOCOL OF 1997 TO AMEND
THE INTERNATIONAL CONVENTION FOR THE PREVENTION OF
POLLUTION FROM SHIPS, 1973, AS MODIFIED BY THE
MEPC 66/21
PROTOCOL OF 1978 RELATING THERETO
Annex 12, page 3
ANNEX
AMENDMENTS TO MARPOL ANNEX VI AND THE NOX TECHNICAL CODE 2008
AMENDMENTS TO MARPOL ANNEX VI
Chapter 1 – General
Regulation 2 – Definitions
1
Paragraph 26 is amended to read as follows:
"26
Gas carrier in relation to chapter 4 of this Annex means a cargo ship, other
than an LNG carrier as defined in paragraph 38 of this regulation, constructed or
adapted and used for the carriage in bulk of any liquefied gas."
2
New paragraphs 38 to 43 are added after existing paragraph 37 as follows:
"38
LNG carrier in relation to chapter 4 of this Annex means a cargo ship
constructed or adapted and used for the carriage in bulk of liquefied natural gas
(LNG).
39
Cruise passenger ship in relation to chapter 4 of this Annex means a
passenger ship not having a cargo deck, designed exclusively for commercial
transportation of passengers in overnight accommodations on a sea voyage.
40
Conventional propulsion in relation to chapter 4 of this Annex means a
method of propulsion where a main reciprocating internal combustion engine(s) is
the prime mover and coupled to a propulsion shaft either directly or through a gear
box.
41
Non-conventional propulsion in relation to chapter 4 of this Annex means a
method of propulsion, other than conventional propulsion, including diesel-electric
propulsion, turbine propulsion, and hybrid propulsion systems.
42
Cargo ship having ice-breaking capability in relation to chapter 4 of this
Annex means a cargo ship which is designed to break level ice independently with a
speed of at least 2 knots when the level ice thickness is 1.0 m or more having ice
bending strength of at least 500 kPa.
43
I:\MEPC\66\21.doc
A ship delivered on or after 1 September 2019 means a ship:
.1
for which the building
1 September 2015; or
contract
is
placed
on
or
after
.2
in the absence of a building contract, the keel of which is laid, or
which is at a similar stage of construction, on or after
1 March 2016; or
.3
the delivery of which is on or after 1 September 2019."
RESOLUTION MEPC.251(66) Adopted on 4 April 2014
AMENDMENTS TO THE ANNEX OF THE PROTOCOL OF 1997 TO AMEND
THE INTERNATIONAL CONVENTION FOR THE PREVENTION OF
POLLUTION FROM SHIPS, 1973, AS MODIFIED BY THE
MEPC 66/21
PROTOCOL OF 1978 RELATING THERETO
Annex 12, page 4
Chapter 2 – Survey, certification and means of control
Regulation 5 – Surveys
3
In the first sentence of paragraph 4.2, the words "a ship" are replaced with the
words "a new ship".
Chapter 3 – Requirements for control of emissions from ships
Regulation 13 – Nitrogen oxides (NOx)
4
Paragraph 2.2 is amended to read as follows:
"2.2
For a major conversion involving the replacement of a marine diesel engine
with a non-identical marine diesel engine, or the installation of an additional marine
diesel engine, the standards in this regulation at the time of the replacement or
addition of the engine shall apply. In the case of replacement engines only, if it is not
possible for such a replacement engine to meet the standards set forth in paragraph
5.1.1 of this regulation (Tier III, as applicable), then that replacement engine shall
meet the standards set forth in paragraph 4 of this regulation (Tier II), taking into
account guidelines developed by the Organization*.
______________
*
5
Refer to the 2013 Guidelines as required by regulation 13.2.2 of MARPOL Annex VI in respect
of non-identical replacement engines not required to meet the Tier III limit, adopted by the
MEPC by resolution MEPC.230(65)."
Paragraphs 5.1 and 5.2 are amended to read as follows:
"Tier III
5.1
Subject to regulation 3 of this Annex, in an emission control area
designated for Tier III NOX control under paragraph 6 of this regulation, the
operation of a marine diesel engine that is installed on a ship:
.1
when:
.2
I:\MEPC\66\21.doc
is prohibited except when the emission of nitrogen oxides
(calculated as the total weighted emission of NOX) from the engine
is within the following limits, where n = rated engine speed
(crankshaft revolutions per minute):
.1
3.4 g/kWh when n is less than 130 rpm;
.2
9 · n(–0.2) g/kWh when n is 130 or more but less than
2,000 rpm;
.3
2.0 g/kWh when n is 2,000 rpm or more;
that ship is constructed on or after 1 January 2016 and is
operating in the North American Emission Control Area or the
United States Caribbean Sea Emission Control Area;
RESOLUTION MEPC.251(66) Adopted on 4 April 2014
AMENDMENTS TO THE ANNEX OF THE PROTOCOL OF 1997 TO AMEND
THE INTERNATIONAL CONVENTION FOR THE PREVENTION OF
POLLUTION FROM SHIPS, 1973, AS MODIFIED BY THE
MEPC 66/21
PROTOCOL OF 1978 RELATING THERETO
Annex 12, page 5
when:
.3
5.2
6
that ship is operating in an emission control area designated for
Tier III NOX control under paragraph 6 of this regulation, other than
an emission control area described in paragraph 5.1.2 of this
regulation, and is constructed on or after the date of adoption of
such an emission control area, or a later date as may be specified
in the amendment designating the NOX Tier III emission control
area, whichever is later.
The standards set forth in paragraph 5.1.1 of this regulation shall not apply to:
.1
a marine diesel engine installed on a ship with a length (L), as
defined in regulation 1.19 of Annex I to the present Convention, of
less than 24 metres when it has been specifically designed, and is
used solely, for recreational purposes; or
.2
a marine diesel engine installed on a ship with a combined
nameplate diesel engine propulsion power of less than 750 kW if it
is demonstrated, to the satisfaction of the Administration, that the
ship cannot comply with the standards set forth in paragraph 5.1.1
of this regulation because of design or construction limitations of
the ship; or
.3
a marine diesel engine installed on a ship constructed prior to
1 January 2021 of less than 500 gross tonnage, with a length (L),
as defined in regulation 1.19 of Annex I to the present convention,
of 24 m or over when it has been specifically designed, and is
used solely, for recreational purposes."
Paragraph 10 is deleted.
Chapter 4 – Regulations for energy efficiency of ships
Regulation 19 – Application
7
A new subparagraph 2.2 is added as follows:
".2
8
ships not propelled by mechanical means, and platforms including FPSOs
and FSUs and drilling rigs, regardless of their propulsion."
Paragraph 3 is amended to read as follows:
"3
Regulations 20 and 21 of this Annex shall not apply to ships which have
non-conventional propulsion, except that regulations 20 and 21 shall apply to cruise
passenger ships having non-conventional propulsion and LNG carriers having
conventional or non-conventional propulsion, delivered on or after 1 September 2019,
as defined in paragraph 43 of regulation 2. Regulations 20 and 21 shall not apply to
cargo ships having ice-breaking capability."
I:\MEPC\66\21.doc
RESOLUTION MEPC.251(66) Adopted on 4 April 2014
AMENDMENTS TO THE ANNEX OF THE PROTOCOL OF 1997 TO AMEND
THE INTERNATIONAL CONVENTION FOR THE PREVENTION OF
POLLUTION FROM SHIPS, 1973, AS MODIFIED BY THE
MEPC 66/21
PROTOCOL OF 1978 RELATING THERETO
Annex 12, page 6
Regulation 20 – Attained Energy Efficiency Design Index (attained EEDI)
9
Paragraph 1 is replaced with the following:
"1
The attained EEDI shall be calculated for:
.1
each new ship;
.2
each new ship which has undergone a major conversion; and
.3
each new or existing ship which has undergone a major
conversion, that is so extensive that the ship is regarded by the
Administration as a newly-constructed ship, which falls into one or
more of the categories in regulations 2.25 to 2.35, 2.38 and 2.39 of
this Annex. The attained EEDI shall be specific to each ship and
shall indicate the estimated performance of the ship in terms of
energy efficiency, and be accompanied by the EEDI technical file
that contains the information necessary for the calculation of the
attained EEDI and that shows the process of calculation.
The attained EEDI shall be verified, based on the EEDI technical
file, either by the Administration or by any organization duly
authorized by it*.
______________

Refer to Code for Recognized Organizations (RO Code), adopted by the MEPC by
resolution MEPC.237(65), as may be amended."
Regulation 21 – Required EEDI
10
Paragraph 1 is replaced with the following:
"1
For each:
.1
new ship;
.2
new ship which has undergone a major conversion; and
.3
new or existing ship which has undergone a major conversion that
is so extensive that the ship is regarded by the Administration as
a newly-constructed ship, which falls into one of the categories in
regulations 2.25 to 2.31, 2.33 to 2.35, 2.38 and 2.39 and to which
this chapter is applicable, the attained EEDI shall be as follows:
Attained EEDI ≤ Required EEDI = (1-X/100) x reference line value
where X is the reduction factor specified in table 1 for the required
EEDI compared to the EEDI reference line."
11
New rows are added to table 1 in regulation 2 for ro-ro cargo ships (vehicle carrier),
LNG carrier, cruise passenger ship having non-conventional propulsion, ro-ro cargo ships
and ro-ro passenger ships, and marks ** and *** and their explanations are added,
as follows:
I:\MEPC\66\21.doc
RESOLUTION MEPC.251(66) Adopted on 4 April 2014
AMENDMENTS TO THE ANNEX OF THE PROTOCOL OF 1997 TO AMEND
THE INTERNATIONAL CONVENTION FOR THE PREVENTION OF
POLLUTION FROM SHIPS, 1973, AS MODIFIED BY THE
MEPC 66/21
PROTOCOL OF 1978 RELATING THERETO
Annex 12, page 7
"
Ship Type
Size
Phase 0
1 Jan 2013 –
31 Dec 2014
Phase 1
1 Jan 2015 –
31 Dec 2019
LNG carrier***
10,000 DWT and
above
n/a
10**
20
30
Ro-ro cargo ship 10,000 DWT and
(vehicle carrier)***
above
n/a
5**
15
30
2,000 DWT and
above
n/a
5**
20
30
1,000 –
2,000 DWT
n/a
0-5***
0-20*
0-30*
1000 DWT and
above
n/a
5**
20
30
250 –
1,000 DWT
n/a
0-5***
0-20*
0-30*
85,000 GT
and above
n/a
5**
20
30
25,000 –
85,000 GT
n/a
0-5***
0-20*
0-30*
Ro-ro cargo
ship***
Ro-ro passenger
ship***
Cruise passenger
ship*** having
non-conventional
propulsion
Phase 2
Phase 3
1 Jan 2020 – 1 Jan 2025 and
31 Dec 2024
onwards
______________
*
**
***
Note:
Reduction factor to be linearly interpolated between the two values dependent upon ship
size. The lower value of the reduction factor is to be applied to the smaller ship size.
Phase 1 commences for those ships on 1 September 2015.
Reduction factor applies to those ships delivered on or after 1 September 2019, as
defined in paragraph 43 of regulation 2.
n/a means that no required EEDI applies."
12
New rows are added to table 2 in paragraph 3 for ro-ro cargo ship (vehicle carrier),
LNG carrier, cruise passenger ship having non-conventional propulsion, ro-ro cargo ships
and ro-ro passenger ships as follows:
I:\MEPC\66\21.doc
RESOLUTION MEPC.251(66) Adopted on 4 April 2014
AMENDMENTS TO THE ANNEX OF THE PROTOCOL OF 1997 TO AMEND
THE INTERNATIONAL CONVENTION FOR THE PREVENTION OF
POLLUTION FROM SHIPS, 1973, AS MODIFIED BY THE
MEPC 66/21
PROTOCOL OF 1978 RELATING THERETO
Annex 12, page 8
"
Ship type defined in regulation 2
2.33 Ro-ro cargo ship (vehicle carrier)
a
(DWT/GT)-0.7・780.36
where DWT/GT<0.3
b
c
DWT of the ship
0.471
DWT of the ship
0.498
2.34 Ro-ro cargo ship
1812.63
where DWT/GT≥0.3
1405.15
2.35 Ro-ro passenger ship
752.16
DWT of the ship
0.381
2.38 LNG carrier
2.39 Cruise passenger ship having
non-conventional propulsion
2253.7
DWT of the ship
0.474
170.84
GT of the ship
0.214
"
Appendix I – Form of International Air Pollution Prevention (IAPP) Certificate
(regulation 8)
13
The footnote in the Supplement to International Air Pollution Prevention Certificate
(IAPP Certificate) is amended to read as follows:
"* Completed only in respect of ships constructed on or after 1 January 2016 that
are specially designed, and used solely, for recreational purposes and to which, in
accordance with regulation 13.5.2.1 and regulation 13.5.2.3, the NOx emission limit
as given by regulation 13.5.1.1 will not apply."
AMENDMENTS TO THE NOX TECHNICAL CODE 2008
Abbreviations, subscripts and symbols
14
Table 4 is replaced by the following:
"Table 4 – Symbols for fuel composition
*
Symbol
*
H content of fuel
*
C content of fuel
% m/m
S content of fuel
% m/m
*
N content of fuel
% m/m
*
O content of fuel
% m/m
Molar ratio (H/C)
1
Subscripts
I:\MEPC\66\21.doc
Definition
"_G" denotes gas-fuel fraction.
"_L" denotes liquid-fuel fraction."
Unit
% m/m
RESOLUTION MEPC.251(66) Adopted on 4 April 2014
AMENDMENTS TO THE ANNEX OF THE PROTOCOL OF 1997 TO AMEND
THE INTERNATIONAL CONVENTION FOR THE PREVENTION OF
POLLUTION FROM SHIPS, 1973, AS MODIFIED BY THE
MEPC 66/21
PROTOCOL OF 1978 RELATING THERETO
Annex 12, page 9
Chapter 1 – General
15
Paragraph 1.3.10 is replaced by the following:
"1.3.10 Marine diesel engine means any reciprocating internal combustion engine
operating on liquid or dual fuel, to which regulation 13 applies, including
booster/compound systems, if applied.
Where an engine is intended to be operated normally in the gas mode, i.e. with the
gas fuel as the main fuel and with liquid fuel as the pilot or balance fuel, the
requirements of regulation 13 have to be met only for this operation mode.
Operation on pure liquid fuel resulting from restricted gas supply in cases of failures
shall be exempted for the voyage to the next appropriate port for the repair of the
failure."
Chapter 5 – Procedures for NOx emission measurements on a test bed
16
Existing paragraph 5.3.4 is deleted and new paragraphs 5.3.4, 5.3.5 and 5.3.6 are
added after existing paragraph 5.3.3 as follows:
"5.3.4 The selection of gas fuel for testing for dual fuel depends on the aim of
tests. In case where an appropriate standard gas fuel is not available, other gas
fuels shall be used with the approval of the Administration. A gas fuel sample shall
be collected during the test of the parent engine. The gas fuel shall be analysed
to give fuel composition and fuel specification.
5.3.5
Gas fuel temperature shall be measured and recorded together with the
measurement point position.
5.3.6
Gas mode operation of dual fuel engines using liquid fuel as pilot or
balance fuel shall be tested using maximum liquid-to-gas fuel ratio, such maximum
ratio means for the different test cycle modes the maximum liquid-to-gas setting
certified. The liquid fraction of the fuel shall comply with 5.3.1, 5.3.2 and 5.3.3."
17
A new sentence is added at the end of existing paragraph 5.12.3.3, as follows:
"In case of the use of dual fuel, the calculation shall be in accordance with
paragraphs 5.12.3.1 to 5.12.3.3. However, qmf, wALF, wBET, wDEL, wEPS, ffw values shall
be calculated in accordance with the following table:
Factors in the formula (6) (7) (8)
Formula for factors
qmf
=
wALF
=
wBET
=
wDEL
=
wEPS
=
qmf_G + qmf_L
qmf _ G  wALF _ G  qmf _ L  wALF _ L
qmf _ G  qmf _ L
qmf _ G  wBET _ G  qmf _ L  wBET _ L
qmf _ G  qmf _ L
qmf _ G  wDEL _ G  qmf _ L  wDEL _ L
qmf _ G  qmf _ L
qmf _ G  wEPS _ G  qmf _ L  wEPS _ L
qmf _ G  qmf _ L
"
I:\MEPC\66\21.doc
RESOLUTION MEPC.251(66) Adopted on 4 April 2014
AMENDMENTS TO THE ANNEX OF THE PROTOCOL OF 1997 TO AMEND
THE INTERNATIONAL CONVENTION FOR THE PREVENTION OF
POLLUTION FROM SHIPS, 1973, AS MODIFIED BY THE
MEPC 66/21
PROTOCOL OF 1978 RELATING THERETO
Annex 12, page 10
18
In paragraph 5.12.5.1, table 5 is replaced by the following:
"Table 5 – Coefficient ugas and fuel-specific parameters for raw exhaust gas
Gas
NOX
CO
HC
CO2
O2
gas kg/m3
2.053
1.250
*
1.9636
1.4277
Coefficient ugas‡
e †
1.2943
0.001586
0.000966
0.000479
0.001517
0.001103
Rapeseed
Methyl
Ester
1.2950
0.001585
0.000965
0.000536
0.001516
0.001102
Methanol
1.2610
0.001628
0.000991
0.001133
0.001557
0.001132
Ethanol
1.2757
0.001609
0.000980
0.000805
0.001539
0.001119
Natural gas
1.2661
0.001621
0.000987
0.000558
0.001551
0.001128
Propane
1.2805
0.001603
0.000976
0.000512
0.001533
0.001115
Butane
1.2832
0.001600
0.000974
0.000505
0.001530
0.001113
Liquid fuel**
_____________________________
*
**
†
‡
Depending on fuel.
Petroleum derived.
is the nominal density of the exhaust gas.
At = 2, wet air, 273 K, 101.3 kPa.
Values for u given in table 5 are based on ideal gas properties.
In multiple fuel type operation, the ugas value used shall be determined from the
values applicable to those fuels in the table set out above proportioned in
accordance with the fuel ratio used."
Chapter 6 – Procedures for demonstrating compliance with NOx emission limits on
board
19
Paragraph 6.3.1.4 is replaced by the following:
"6.3.1.4
In practical cases, it is often impossible to measure the fuel oil
consumption once an engine has been installed on board a ship. To simplify the
procedure on board, the results of the measurement of the fuel oil consumption from
an engine's pre-certification test-bed testing may be accepted. In such cases,
especially concerning residual fuel oil operation (RM-grade fuel oil according to
ISO 8217:2005) and dual fuel operation, an estimation with a corresponding
estimated error shall be made. Since the fuel oil flow rate used in the calculation
) must relate to the fuel oil composition determined in respect of the fuel sample
(
drawn during the test, the measurement of
from the test-bed testing shall be
corrected for any difference in net calorific values between the test bed and test fuel
oils and gases. The consequences of such an error on the final emissions shall be
calculated and reported with the results of the emission measurement."
I:\MEPC\66\21.doc
RESOLUTION MEPC.251(66) Adopted on 4 April 2014
AMENDMENTS TO THE ANNEX OF THE PROTOCOL OF 1997 TO AMEND
THE INTERNATIONAL CONVENTION FOR THE PREVENTION OF
POLLUTION FROM SHIPS, 1973, AS MODIFIED BY THE
MEPC 66/21
PROTOCOL OF 1978 RELATING THERETO
Annex 12, page 11
20
In paragraph 6.3.2.1, table 6 is replaced by the following:
"Table 6 – Engine parameters to be measured and recorded
Symbol
Term
Unit
Absolute humidity (mass of engine intake air water content related to mass
of dry air)
Engine speed (at the
mode during the cycle)
Turbocharger speed (if applicable) (at the
mode during the cycle)
Total barometric pressure (in ISO 3046-1:1995:
=
= site ambient total pressure)
Charge air pressure after the charge air cooler (at the
cycle)
Brake power (at the
mode during the cycle)
mode during the
_L
*
min
–1
min
–1
kPa
kPa
kW
Fuel oil (in case of dual fuel engine, it would be fuel oil and gas) (at the
mode during the cycle)
Fuel rack position (of each cylinder, if applicable) (at the
mode during
the cycle)
Intake air temperature at air inlet (in ISO 3046-1:1995: Tx = TTx = site
ambient thermodynamic air temperature)
Charge air temperature after the charge air cooler (if applicable) (at the
mode during the cycle)
Charge air cooler, coolant inlet temperature
Charge air cooler, coolant outlet temperature
Exhaust gas temperature at the sampling point (at the
cycle)
Fuel oil temperature before the engine
g/kg
mode during the
kg/h
K
K
°C
°C
°C
°C
Seawater temperature
°C
Gas fuel temperature before the engine
°C
______________
*
21
Only for dual-fuel engine."
A new paragraph 6.3.4.3 is added after existing paragraph 6.3.4.2 as follows:
"6.3.4.3
In case of a dual fuel engine, the gas fuel used shall be the gas fuel
available on board."
22
Paragraph 6.3.11.2 is replaced by the following:
"6.3.11.2 The NOX emission of an engine may vary depending on the ignition
quality of the fuel oil and the fuel-bound nitrogen. If there is insufficient information
available on the influence of the ignition quality on the NO X formation during the
combustion process and the fuel-bound nitrogen conversion rate also depends on
the engine efficiency, an allowance of 10% may be granted for an on board test run
carried out on an RM-grade fuel oil (ISO 8217:2005), except that there will be no
allowance for the pre-certification test on board. The fuel oil and gas fuel used shall
be analysed for its composition of carbon, hydrogen, nitrogen, sulphur and, to the
extent given in (ISO 8217:2005) and (ISO 8178-5:2008), any additional components
necessary for a specification of the fuel oil and gas fuel."
I:\MEPC\66\21.doc
RESOLUTION MEPC.251(66) Adopted on 4 April 2014
AMENDMENTS TO THE ANNEX OF THE PROTOCOL OF 1997 TO AMEND
THE INTERNATIONAL CONVENTION FOR THE PREVENTION OF
POLLUTION FROM SHIPS, 1973, AS MODIFIED BY THE
MEPC 66/21
PROTOCOL OF 1978 RELATING THERETO
Annex 12, page 12
23
In paragraph 6.4.11.1, table 9 is replaced by the following:
"Table 9 – Default fuel oil parameters
Distillate fuel oil
(ISO 8217:2005,
DM grade)
Residual fuel oil
(ISO 8217:2005,
RM grade)
Natural gas
Carbon
Hydrogen
Nitrogen
Oxygen
86.2%
13.6%
0.0%
0.0%
86.1%
10.9%
0.4%
0.0%
75.0%
25.0%
0.0%
0.0%
For other fuel oils, default value as approved by the Administration."
Appendix VI – Calculation of exhaust gas mass flow (carbon balance method)
24
A new paragraph 2.5 is added after existing paragraph 2.4 as follows:
"2.5
qmf, wALF, wBET, wDEL, wEPS, ffd parameters, in formula (1), in case of gas
mode operation of dual-fuel engine, shall be calculated as follows:
Factors in formula (1)
Formula of factors
qmf
=
wALF
=
wBET
=
wDEL
=
wEPS
=
qmf_G+qmf_L
qmf _ G  wALF _ G  qmf _ L  wALF _ L
qmf _ G  qmf _ L
qmf _ G  wBET _ G  qmf _ L  wBET _ L
qmf _ G  qmf _ L
q mf _ G  wDEL _ G  q mf _ L  wDEL _ L
q mf _ G  q mf _ L
qmf _ G  wEPS _ G  qmf _ L  wEPS _ L
qmf _ G  qmf _ L
"
***
I:\MEPC\66\21.doc
RESOLUTION MEPC.251(66) Adopted on 4 April 2014
AMENDMENTS TO THE ANNEX OF THE PROTOCOL OF 1997 TO AMEND
THE INTERNATIONAL CONVENTION FOR THE PREVENTION OF
POLLUTION FROM SHIPS, 1973, AS MODIFIED BY THE
PROTOCOL OF 1978 RELATING THERETO